ZIP code 50440: Grafton, IA
50440 is a ZIP code in Grafton, Iowa, mainly in Worth County, part of the Mason City, IA micro area. About 361 people live here.
- Population
- 361
- Median household income
- $76,429
- Typical home value
- $181,500+4.3% in 12 months
- Median rent
- $638gross, per month
- Median age
- 56.2
- Homeowners
- 74.7%of occupied homes
Shaded: ZIP code 50440's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 50440 details
| City | Grafton |
|---|---|
| State | Iowa |
| County | Worth County |
| Metro area | Mason City, IA |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 29.2 sq mi |
| Population density | 12 people per sq mi |
| Bachelor's degree or higher | 16.3% of adults 25+ |
| Average commute | 21 minutes |
| Center coordinates | 43.33237, -93.06898 |
ZIP codes near 50440
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 50464 | Plymouth, IA | 5.6 mi | 694 |
| 50426 | Carpenter, IA | 6.3 mi | 81 |
| 50456 | Manly, IA | 7.9 mi | 1,699 |
| 50472 | Saint Ansgar, IA | 8.5 mi | 2,560 |
| 50467 | Rock Falls, IA | 8.5 mi | 63 |
| 50448 | Kensett, IA | 8.7 mi | 620 |
| 50458 | Nora Springs, IA | 12.3 mi | 2,094 |
| 50459 | Northwood, IA | 12.6 mi | 3,045 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 50440?
A typical home in ZIP code 50440 is worth about $181,500 (Zillow Home Value Index). The median household here earns $76,429 a year. See what buying here would cost per month, with Iowa average taxes and insurance filled in.
Monthly payment for a $181,500 homeWhat can a $76,429 income afford?Rental property numbers
About ZIP code 50440
What city is ZIP code 50440?
ZIP code 50440 is in Grafton, IA, in Worth County.
What county is ZIP code 50440 in?
50440 is mainly in Worth County, Iowa.
What is the population of ZIP code 50440?
About 361 people live in ZIP code 50440, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 50440 in?
50440 is in Central Time (UTC−6). It observes daylight saving time.